A review of bias flow liners for acoustic dam** in gas turbine combustors

C Lahiri, F Bake - Journal of Sound and Vibration, 2017 - Elsevier
The optimized design of bias flow liner is a key element for the development of low emission
combustion systems in modern gas turbines and aero-engines. The research of bias flow …

Radiation impedance of tubes with different flanges: numerical and experimental investigations

JP Dalmont, CJ Nederveen, N Joly - Journal of sound and vibration, 2001 - Elsevier
End corrections for open-ended cylindrical tubes are determined theoretically and
experimentally. For the zero and low frequencies, the wave equation is solved numerically …

Studying acoustic behavior of BFRP laminated composite in dual-chamber muffler application using deep learning algorithm

WA Altabey, M Noori, Z Wu, MA Al-Moghazy… - Materials, 2022 - mdpi.com
Over the last two decades, several experimental and numerical studies have been
performed in order to investigate the acoustic behavior of different muffler materials …

Approximation formulae for the acoustic radiation impedance of a cylindrical pipe

F Silva, P Guillemain, J Kergomard, B Mallaroni… - Journal of Sound and …, 2009 - Elsevier
Useful approximation formulae for radiation impedance are given for the reflection
coefficients of both infinitely flanged and unflanged rigid-walled cylindrical ducts. The …

Methods for evaluating in-duct noise attenuation performance in a muffler design problem

JK Lee, KS Oh, JW Lee - Journal of sound and vibration, 2020 - Elsevier
In this study, methods for evaluating the noise attenuation performance of a muffler in a
muffler design problem are investigated, and a proper evaluation method is suggested for …

Modeling the acoustic flux inside the magmatic conduit by 3D‐FDTD simulation

G Lacanna, M Ripepe - Journal of Geophysical Research: Solid …, 2020 - Wiley Online Library
Infrasound measurements at open‐vent volcanoes are crucial parameters for monitoring
and exploring the explosive source dynamics. Volcano infrasound depicts the pressure …

Adjoint-accelerated Bayesian inference applied to the thermoacoustic behaviour of a ducted conical flame

M Yoko, MP Juniper - Journal of Fluid Mechanics, 2024 - cambridge.org
We use Bayesian inference, accelerated by adjoint methods, to construct a quantitatively
accurate model of the thermoacoustic behaviour of a conical flame in a duct. We first perform …

[HTML][HTML] Theoretical model of azimuthal combustion instability subject to non-trivial boundary conditions

QIN Lei, W **aoyu, G Zhang, SUN **aofeng - Chinese Journal of …, 2024 - Elsevier
The problem of evaluating the sensitivity of non-trivial boundary conditions to the onset of
azimuthal combustion instability is a longstanding challenge in the development process of …

[PDF][PDF] Acoustic performance of bias flow liners in gas turbine combustors

C Lahiri - 2014 - depositonce.tu-berlin.de
Thermoacoustic instabilities prevent the implementation of modern combustion concepts in
gas turbines, which are essential for higher efficiency and lower emissions. Bias flow liners …

Acoustic length correction of closed cylindrical side-branched tube

ZL Ji - Journal of Sound and Vibration, 2005 - Elsevier
A numerical approach based on the three-dimensional boundary element method (BEM) is
developed to determine the acoustic length correction of closed cylindrical side-branched …